CI

At a glance

ClinicalIndex Comparison Record
Phase 2Active· 313 enrolled / 313 target
Drug / intervention
Pembrolizumab +4 morebiological
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03698019
NCT03698019Phase 2ActiveUpdate Overdue (3.5/mo)Completion was 45mo ago

A Phase II Randomized Study of Adjuvant Versus NeoAdjuvant Pembrolizumab (MK-3475) for Clinically Detectable Stage III-IV High-Risk Melanoma

National Cancer Institute (NCI)·interventional·Posted Oct 5, 2018·Updated Jun 26, 2026

In Brief

A Phase 2 clinical trial evaluating Biospecimen Collection, Computed Tomography, and 3 other interventions for Acral Lentiginous Melanoma and 3 related conditions. Active but no longer recruiting, targeting 313 participants across 816 sites.

Signals

Enrollment appears stalled

Detailed Summary

This phase II trial studies how pembrolizumab works before and after surgery in treating patients with stage III-IV high-risk melanoma. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving pembrolizumab before and after surgery may work better compared to after surgery alone in treating melanoma.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
Collaborators--

Timeline

Phase 2Active
201920202021202220232024202520262027
First PostedOct 5, 2018
Enrollment StartFeb 15, 2019
Primary CompletionSep 1, 2022
Study CompletionOct 30, 2026
TodayJul 2, 2026
Enrollment to primary: 3.5 yearsPosted 7.7 years ago

Arms & Interventions

Arm I (adjuvant pembrolizumab)experimental

Within 17 days (preferably within 14 days) days after IV over 30 minutes on day 1. Treatment repeats every 3 weeks for 18 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo collection of blood throughout the study and MRI or CT on study.

Procedure: Biospecimen CollectionProcedure: Computed TomographyProcedure: Magnetic Resonance ImagingBiological: PembrolizumabProcedure: Therapeutic Conventional Surgery
Arm II (adjuvant and neoadjuvant pembrolizumab)active_comparator

Patients receive pembrolizumab IV over 30 minutes on day 1 every 3 weeks for 3 cycles, then undergo surgery within 3 weeks. Within 84 days, patients receive pembrolizumab IV over 30 minutes every 3 weeks for 15 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo collection of blood throughout the study and MRI or CT on study.

Procedure: Biospecimen CollectionProcedure: Computed TomographyProcedure: Magnetic Resonance ImagingBiological: PembrolizumabProcedure: Therapeutic Conventional Surgery

Interventions

Biospecimen Collectionprocedure

Undergo collection of blood

Computed Tomographyprocedure

Undergo CT

Magnetic Resonance Imagingprocedure

Undergo MRI

Pembrolizumabbiological

Given IV

Therapeutic Conventional Surgeryprocedure

Undergo surgery